The federal Clean Water Act, Safe Drinking Water Act, and Endangered Species Act require the city to manage stormwater runoff to protect water quality in rivers and streams, protect watershed health, and protect groundwater as a drinking water resource.
The city’s federal stormwater permit requires Portland to reduce stormwater pollution, and manage other programs that respond to water quality requirements. Environmental Services coordinates the city’s response to the federal permit.
Environmental Services also coordinates the citywide response to the Water Pollution Control Facilities (WPCF) permit issued by the Oregon Department of Environmental Quality (DEQ). To protect groundwater quality, the WPCF permit requires the city to develop and implement a UIC management plan (UICMP) that prevents, minimizes, and controls pollutants at the surface before stormwater infiltrates into the ground.
Portland finances stormwater management services by collecting public utility fees on developed property, and system development charges (SDCs) on new development.
The city works with citizens, businesses, and property owners to increase public awareness of stormwater issues and promote private stormwater management efforts.